/* USV-Guard Modern SaaS Theme */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    /* Colors - Modern SaaS Palette */
    --usv-primary: #2563eb;
    --usv-primary-hover: #1d4ed8;
    --usv-secondary: #64748b;
    --usv-accent: #f59e0b;
    --usv-success: #10b981;
    --usv-warning: #f59e0b;
    --usv-danger: #ef4444;
    --usv-info: #0ea5e9;

    /* Backgrounds & Surfaces */
    --usv-body-bg: #f8fafc;
    --usv-surface-bg: #ffffff;
    --usv-card-bg: #ffffff;
    --usv-border-color: #e2e8f0;

    /* Text */
    --usv-text-main: #1e293b;
    --usv-text-muted: #64748b;
    --usv-text-light: #94a3b8;

    /* System */
    --usv-radius: 10px;
    --usv-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --usv-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --usv-font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Global Styles */
body {
    background-color: var(--usv-body-bg);
    color: var(--usv-text-main);
    font-family: var(--usv-font-sans);
    -webkit-font-smoothing: antialiased;
    padding-bottom: 3rem;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
}

/* Layout */
.main-content {
    padding-top: 1.5rem;
}

/* Navbar Modernization */
.navbar-usv {
    background-color: var(--usv-surface-bg);
    border-bottom: 1px solid var(--usv-border-color);
    padding: 0.75rem 0;
    box-shadow: var(--usv-shadow-sm);
}

.navbar-brand {
    color: var(--usv-primary) !important;
    letter-spacing: -0.025em;
}

.nav-link {
    color: var(--usv-text-muted) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: color 0.2s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--usv-primary) !important;
}

/* Cards */
.card {
    background-color: var(--usv-card-bg);
    border: 1px solid var(--usv-border-color);
    border-radius: var(--usv-radius);
    box-shadow: var(--usv-shadow-sm);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--usv-border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

.card-body {
    padding: 1.5rem;
}

/* Page Header Component Styles */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header-title h1 {
    font-size: 1.875rem;
    margin-bottom: 0.25rem;
}

.page-header-title p {
    color: var(--usv-text-muted);
    margin-bottom: 0;
}

/* Buttons */
.btn {
    border-radius: var(--usv-radius);
    font-weight: 500;
    padding: 0.5rem 1.25rem;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--usv-primary);
    border-color: var(--usv-primary);
}

.btn-primary:hover {
    background-color: var(--usv-primary-hover);
    border-color: var(--usv-primary-hover);
}

/* Tables */
.table-container {
    background: var(--usv-surface-bg);
    border-radius: var(--usv-radius);
    border: 1px solid var(--usv-border-color);
}

.table-responsive {
    overflow-x: auto;
    overflow-y: visible;
    /* Try to keep vertical overflow visible */
}

.table {
    margin-bottom: 0;
}

.table th {
    background-color: #f8fafc;
    color: var(--usv-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--usv-border-color);
}

.table td {
    padding: 1rem 1.5rem;
    vertical-align: middle;
}

/* Badges */
.badge {
    padding: 0.35em 0.65em;
    font-weight: 500;
    border-radius: 6px;
}

.badge-status-online {
    background-color: #dcfce7;
    color: #166534;
}

.badge-status-offline {
    background-color: #fee2e2;
    color: #991b1b;
}

/* Forms */
.form-control,
.form-select {
    border-radius: 8px;
    border-color: var(--usv-border-color);
    padding: 0.625rem 0.875rem;
}

.form-control:focus {
    border-color: var(--usv-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

/* Empty State */
.empty-state {
    padding: 4rem 2rem;
    text-align: center;
}

.empty-state-icon {
    font-size: 3rem;
    color: var(--usv-text-light);
    margin-bottom: 1.5rem;
}